In 1979, Ed Stilley was leading a simple life as a farmer and singer of religious hymns in Hogscald Hollow, a tiny Ozark community south of Eureka Springs, Arkansas. Life was filled with hard work and making do for Ed, his wife Eliza, and their five children, who lived in many ways as if the second half of the twentieth century had never happened.

But one day Ed's life was permanently altered. While plowing his field, he became convinced he was having a heart attack. Ed stopped his work and lay down on the ground. Staring at the sky, he saw himself as a large tortoise struggling to swim...